Minion of Eris writes: According to a press release found today on CrackBerry:

Microsoft Corp. announced today that Microsoft and Research In Motion (RIM) have signed a patent licensing agreement that gives RIM broad access to the latest Extended File Allocation Table (exFAT) for certain BlackBerry® devices of RIM. exFAT is a modern file system from Microsoft that facilitates large files for audiovisual media and enables seamless data portability and an easy interchange between desktop PCs and other electronic devices.